<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>

<body>

    <button>获取Users</button>

    <script>

        let btns = document.querySelectorAll('button');

        btns[0].onclick = function () {
            let xhr = new XMLHttpRequest();

            xhr.open('get', '/users');

            xhr.onload = function () {
                console.log(this.responseText);
            }

            xhr.send();
        }

    </script>

</body>

</html>